S$366 Cheap Flights from Seoul to London

View S$366 flight on Tue, 21 Oct, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seoul to London (ICN-LHR)

Prices were available within the past 7 days and start at S$366 for one-way flights and S$926 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Sun, 16 Nov - Mon, 24 Nov
ICN
Seoul
LHR
London
S$926 Return, found 1 day ago
S$926
Return
found 1 day ago
Select China Southern Airlines flight, departing Sun, 16 Nov from Seoul to London, returning Mon, 24 Nov, priced at S$926 found 1 day ago
Asiana Airlines
Sun, 16 Nov - Mon, 24 Nov
ICN
Seoul
LHR
London
S$969 Return, found 1 day ago
S$969
Return
found 1 day ago
Select Asiana Airlines flight, departing Sun, 16 Nov from Seoul to London, returning Mon, 24 Nov, priced at S$969 found 1 day ago
China Eastern Airlines
Wed, 6 Aug - Mon, 18 Aug
ICN
Seoul
LHR
London
S$1,066 Return, found 4 days ago
S$1,066
Return
found 4 days ago
Select China Eastern Airlines flight, departing Wed, 6 Aug from Seoul to London, returning Mon, 18 Aug, priced at S$1,066 found 4 days ago
Vietnam Airlines
Wed, 17 Sep - Tue, 30 Sep
ICN
Seoul
LHR
London
S$1,118 Return, found 3 days ago
S$1,118
Return
found 3 days ago
Select Vietnam Airlines flight, departing Wed, 17 Sep from Seoul to London, returning Tue, 30 Sep, priced at S$1,118 found 3 days ago
Finnair
Wed, 17 Sep - Tue, 30 Sep
ICN
Seoul
LHR
London
S$1,119 Return, found 3 days ago
S$1,119
Return
found 3 days ago
Select Finnair flight, departing Wed, 17 Sep from Seoul to London, returning Tue, 30 Sep, priced at S$1,119 found 3 days ago
Emirates
Tue, 12 Aug - Mon, 18 Aug
ICN
Seoul
LHR
London
S$1,164 Return, found 1 day ago
S$1,164
Return
found 1 day ago
Select Emirates flight, departing Tue, 12 Aug from Seoul to London, returning Mon, 18 Aug, priced at S$1,164 found 1 day ago
Korean Air
Tue, 23 Dec - Tue, 30 Dec
ICN
Seoul
LHR
London
S$1,196 Return, found 1 day ago
S$1,196
Return
found 1 day ago
Select Korean Air flight, departing Tue, 23 Dec from Seoul to London, returning Tue, 30 Dec, priced at S$1,196 found 1 day ago
Qatar Airways
Tue, 23 Dec - Tue, 30 Dec
ICN
Seoul
LHR
London
S$1,212 Return, found 1 day ago
S$1,212
Return
found 1 day ago
Select Qatar Airways flight, departing Tue, 23 Dec from Seoul to London, returning Tue, 30 Dec, priced at S$1,212 found 1 day ago
LOT-Polish Airlines
Wed, 13 Aug - Wed, 20 Aug
ICN
Seoul
LHR
London
S$1,226 Return, found 1 day ago
S$1,226
Return
found 1 day ago
Select LOT-Polish Airlines flight, departing Wed, 13 Aug from Seoul to London, returning Wed, 20 Aug, priced at S$1,226 found 1 day ago
China Airlines
Sun, 7 Sep - Sat, 13 Sep
ICN
Seoul
LHR
London
S$1,285 Return, found 1 day ago
S$1,285
Return
found 1 day ago
Select China Airlines flight, departing Sun, 7 Sep from Seoul to London, returning Sat, 13 Sep, priced at S$1,285 found 1 day ago

Find the cheapest month to fly from Seoul (ICN) to London (LHR)

November is typically the cheapest month to fly

From S$615 - S$959 per traveller.

Graph displaying average flight prices per month

Seoul to London route information
Origin airport
Incheon Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, Air India, Asiana Airlines, British Airways, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Emirates, Ethiopian Airlines, Etihad Airways, Finnair, KLM, LOT-Polish Airlines, Lufthansa, Malaysia Airlines, Qatar Airways, Thai Airways International, Vietnam Airlines
Return price
S$926
Distance
8809 km
Average flight time
6 hours 27 mins

Perfect flights from Seoul to London

Your Journey from Seoul to London

Start your unforgettable journey with Expedia. Our broad selection of flights from Seoul to London caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including LOT-Polish Airlines, Etihad Airways, Royal Brunei Airlines, China Southern Airlines, Malaysia Airlines, Vietnam Airlines, Qatar Airways, EVA Airways, China Eastern Airlines, Ethiopian Airlines, Asiana Airlines, Finnair, Emirates, Korean Air, China Airlines. Our selection of flights from Incheon Intl. to Heathrow caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seoul to London Flights

Experience the joy of finding cheap flights from Incheon Intl. to Heathrow that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$366 and roundtrip prices from S$926*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seoul to London with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant London

Picture yourself stepping off the plane in London and immersing yourself in the unique atmosphere of London. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seoul to London Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seoul to London.
 

Beyond the Flight – Exploring London

With Expedia, your adventure extends beyond the flight. Explore London at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seoul to London with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seoul to London with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Incheon Intl. Airport (ICN) to London Heathrow?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Incheon Airport and London Heathrow start from S$926. Make your booking today to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seoul--Incheon Intl. Airport to Heathrow Airport (LHR)?
When it comes to cancellation fees, every airline has its own set of terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.
How do I find cheap flights from Seoul--Incheon Intl. Airport to Heathrow Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seoul--Incheon Intl. Airport to London Heathrow flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Incheon Airport to Heathrow Airport?
With around 8,900 kilometres separating South Korea and Hounslow, your flight will be a long one. Pack wisely and make your time on board more comfortable. Simple things like an extra pair of socks and a quality travel pillow can make a massive difference.
Which airlines fly direct from Incheon Intl. Airport (ICN) to LHR?
Korean Air (KE) is one of the top choices for many travellers flying between Incheon Intl. Airport (ICN) and Heathrow Airport. Take your pick of the 30 flights it operates on this route each month. Another carrier operating on this route is Asiana Airlines (OZ). You'll have 30 flights each month to select from.
Are Incheon Intl. Airport (ICN) to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Fares from Incheon Airport to London Heathrow are available up to 12 months prior to departure on Expedia. And although you may occasionally score a fantastic last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices --- and you can avoid getting stuck in the dreaded middle seat! We frequently update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

London Airports

London

Seoul Airports

Seoul

*Available to Expedia members.